Ministering to Mormons: A Pattern of Prophets

What might the Christian expect from the Mormon missionary at his door? What message will the Latter Day Saint have? Among other things, the Church of Jesus Christ of Latter Day Saints teaches that God's modus operandi, so to speak, has always been, and therefore must continue to be, revelation through prophets. Without a living prophet, the LDS missionary might argue, the Church lacks proper direction.